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  1. 1. Science Experiment Winter Camp
  2. 2. What is Science?
  3. 3. What is Science? • Class in School (Is it easy class?) • Definition of Science: • The study of the structure and behavior of the physical and natural world. • We study it by doing: • Observations (watching things) • Experiments (test theories or what we think will happen).
  4. 4. Types of Science: Science Physical Chemistry Physics Earth Social Life Biology Mathematical Which is your favorite?
  5. 5. Today’s science class is about Earth Science • Geological Science • Knowledge of Earth composition and structure • How the earth is built? • What it is made of?
  6. 6. Volcano’s • What is a volcano? • Where can you find them? • Can you name any Volcanos in Taiwan?
  7. 7. Volcano’s • What is a volcano? • A volcano is an opening in the earth's crust through which magma, ash and gas erupt. Volcanoes can be different shapes although they are commonly cone shaped • Where can you find them? • Many countries, including Taiwan, Japan, and United States • Ring of Fire • Does Taiwan have any Volcanos? • Yes, in the Datun Volcano Group in northern Taiwan, the Guishan Island off the coast of Yilan, and the undersea volcanoes in the waters off northeastern Taiwan.
  8. 8. Types of Volcanos Active • Means it has erupted recently and can erupt again. Dormant • Means it has erupted in the past 2000 years. (Mostly sleeping) Extinct • Means it should not erupt again. (The volcano has died.)
  9. 9. Major Parts of the Volcano • Vent • Crater • Ash Clouds • Lava (Magma)
  10. 10. Group Time • Complete the Parts of a Volcano worksheets.
  11. 11. If a Volcano erupts, what should you do? • Move as far away as you can from the Volcano • Get inside (don’t want to get hit by falling rocks) • Close all doors and windows (don’t want to breath the volcanic gas) • Stay away from windows while inside
  12. 12. Experiments • a scientific test in which you perform a series of actions and carefully observe their effects in order to learn about something.
  13. 13. Why do Experiments • They are fun • Part of the Scientific Process/Method • To test hypothesis. • testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon.
  14. 14. Chemical Reaction • This happens when two chemicals combine to cause something to happen. • For our Volcanos, we will mix Baking Soda and Vinegar to create a reaction.
  15. 15. Baking Soda • Scientific Name is: Sodium bicarbonate • Commonly known as baking soda or bicarbonate of soda • A chemical compound with the formula NaHCO3. It is a salt composed of a sodium cation (Na+) and a bicarbonate anion (HCO3).
  16. 16. Vinegar • Scientific Name is: Acetic Acid • Commonly known as Vinegar • A chemical compound with the formula CH3COOH. It is composed of Hydrogen, Carbon, and Oxygen molecules.
  17. 17. Chemical Reaction of Volcanoes • A chemical reaction between vinegar and baking soda creates a gas called carbon dioxide. • Carbon dioxide is the same type of gas used to make the carbonation in Coca Cola. • What happens if you shake up a soda? The gas gets very excited and tries to spread out. There is not enough room in the bottle for the gas to spread out so it leaves through the opening very quickly, causing an eruption!
  18. 18. Building a Volcano. You need: • Box for your Volcano to sit in • Bowl of Water and Glue • Empty Bottle • Cup for the base of the volcano • Old wadded up newspaper and Tape • Colored Paper and Scissors • Baking Soda and Vinegar and Food Coloring
  19. 19. Building a Volcano: Step 1 • Place your carboard box/sheet on the table. • This will help clean things clean
  20. 20. Building a Volcano: Step 2 • Place your cup upside down in the middle of the cardboard. • This becomes your base of the volcano.
  21. 21. Building a Volcano: Step 3 • Glue your bottle on top of your cup. • Make sure the bottle will not fall over.
  22. 22. Building a Volcano: Step 4 • Form your base using wadded up paper. • Use tape to help create the cone shape.
  23. 23. Building a Volcano: Step 5 • Cut your colored paper in strips. • Dip the strips into your water (that is mixed with glue) • Put the strips on the volcano.
  24. 24. Volcano is now built
  25. 25. Let’s make an eruption now! • Get your baking soda, vinegar and food coloring ready: • Use cup to mix food coloring and vinegar. • Put the baking soda into the volcano. • Pour the colored vinegar into the volcano. • Be careful, as it might explode 
  26. 26. Experiment #2
  27. 27. Density • It’s the secret behind the lava lamp. • Density is a property of measurement that determines the amount of space which is taken up an object or a substance. • is that it is the amount of mass present within an object about its volume.
  28. 28. Objects have different densities • Mass is the quantity of matter in a substance or object • Volume is the amount of space it takes up.
  29. 29. • Different objects placed in water react differently due to the density.
  30. 30. Why does it matter? • A hard object like a rubber ball has a _______ density (low or high). • A softer object like a foam ball has a _______ density (low or high). • If an object is dense, it may ______ (sink or float). • If an object is not dense, it may ______ (sink or float).
  31. 31. Lava Lamp Experiment Supplies • Empty clear plastic water bottle • Food coloring • Oil • Water • Alka-Seltzer tablets • Plastic cups
  32. 32. Lava Lamp Worksheet • Take out your worksheet and fill in your predictions. • Let’s now do the experiment and observe what happens.